HS 381239 Other

Quick Answer: Preparations for rubber or plastics, not elsewhere specified, imported under HS 381239 enter the UK duty-free, the EU at 6.50% ad valorem, and the US at 6.5% ad valorem or 3.7¢/kg + 60% depending on the specific product and origin. This residual classification applies to various chemical mixtures designed to improve the properties of rubber or plastics, such as antioxidants, antiozonants, and stabilizers, when they do not fit into more specific headings. Importers and customs brokers should carefully review the specific composition and intended use of these preparations to ensure accurate classification and compliance with applicable duty rates, as highlighted by CustomTariffs data. Trade agreements can significantly impact US duty rates for certain origins.

What Are the Import Duty Rates?

🇬🇧 United Kingdom

Code MFN Preferential Unit
3812390000
3812399000 0.00 %
3812399025 0.00 %
3812399033 0.00 %
3812399038 0.00 %

🇪🇺 European Union (TARIC)

Code MFN Preferential Unit
3812390000 6.50 %
3812391000 6.50 %
3812399000 6.50 %
3812399023 6.50 %
3812399033 6.50 %

🇺🇸 United States (HTSUS)

Code MFN Preferential Unit
3812392000 6.5% Free (17 programs) ["kg"]
3812399000 5% Free (17 programs) ["kg"]
381239 []
3812393000 Free ["kg"]
3812396000 6.5% Free (17 programs) ["kg"]

Special rates available under trade agreements including USMCA, KORUS, GSP.

Duty rates sourced from the USITC (US International Trade Commission) Harmonized Tariff Schedule (HTS) (accessed 2/22/2026), EU TARIC – DG TAXUD (Directorate-General for Taxation and Customs Union) (accessed 2/22/2026), and UK Trade Tariff – HMRC (His Majesty's Revenue and Customs) (accessed 2/22/2026).

Data compiled and presented by HSRates.

Which Trade Agreements Reduce Duties for HS 3812.39?

Imports of Other may qualify for reduced or zero duty rates under free trade agreements and preferential programs. The overview below shows available preferential arrangements by jurisdiction, compiled by HSRates from official tariff and trade agreement data.

United States (HTSUS)

Free for USMCA, KORUS, GSP, and 15 other programs

European Union (TARIC)

Preferential rate data not yet available.

United Kingdom

Preferential rate data not yet available.

Preferential rates require proof of origin and may be subject to quotas or conditions. Always verify eligibility with a licensed customs broker.

Data compiled by HSRates.

Which Preferential Rates Apply to Your Origin Country?

Select an origin country to see if preferential rates apply.

Preferential rates based on available trade agreements. Actual rates may vary.

How Has Trade Volume Developed?

Trade Volume 2023

US$250.6M
ImportsExports

How to Classify This HS Code?

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What products does HS 381239 cover?

This subheading covers "Other" prepared additives for mineral oils, including lubricating oils, and for similar products, not elsewhere specified or included in heading 3812. According to the World Customs Organization (WCO) Harmonized System Explanatory Notes and definitions found in official tariff schedules like the USITC Harmonized Tariff Schedule (HTS) and the EU's TARIC database, this category is a residual one for specialized chemical mixtures designed to enhance the performance or properties of lubricants and fuels, such as anti-wear agents, viscosity index improvers, or pour point depressants, when they do not fit into more specific subheadings within heading 3812.

What falls outside HS 381239?

The following products are excluded from HS 381239: prepared additives for mineral oils that are specifically enumerated in other subheadings of heading 3812, such as antioxidants or anti-rust preparations. Additionally, products that are not primarily intended as additives for mineral oils, like general-purpose industrial greases or basic chemical compounds not yet formulated into a specific additive mixture, are classified elsewhere. For instance, pure synthetic base oils or simple emulsifiers would not fall under this code.

What are common classification mistakes for HS 381239?

A common error is misclassifying products that are actually finished lubricating oils or greases, which are typically classified under heading 2710. Another mistake involves classifying basic chemical components that are not yet formulated into a prepared additive mixture. Importers must carefully consider General Rule of Interpretation (GRI) 3(b) for mixtures and composite goods, ensuring the product's primary function and essential character as a lubricant additive are correctly identified before assigning it to this residual subheading.

How should importers classify products under HS 381239?

The correct procedure for classifying products under HS 381239 involves a thorough review of the product's composition, intended use, and marketing information. Importers and customs brokers should consult the WCO Explanatory Notes for heading 3812 and the specific national tariff schedule (e.g., USITC HTS, EU TARIC, UK Trade Tariff) to determine if the product fits the description of "other" prepared additives. If the product is a mixture, GRI 3(b) should be applied to ascertain its essential character.

How is the duty calculated for products under HS 381239?

A shipment of 1,000 kilograms of a specialized friction modifier additive, declared at a customs value of $5,000 USD, would attract a US duty of $175.00. This is calculated using the USITC Harmonized Tariff Schedule's Most Favored Nation (MFN) rate for HS 381239, which is 3.5% ad valorem. The calculation is $5,000 USD (declared value) × 0.035 (duty rate) = $175.00 (duty amount). This assumes no other duties or taxes apply.

Which trade agreements reduce duties for HS 381239?

Several free trade agreements may reduce the applicable duty rate for HS 381239, including the United States-Mexico-Canada Agreement (USMCA), which can result in a duty rate of Free for qualifying goods originating from Canada or Mexico. Additionally, the Generalized System of Preferences (GSP) may offer reduced or Free rates for eligible products from designated developing countries. To claim these preferences, a valid USMCA Certificate of Origin or a GSP Form A (Certificate of Origin) is typically required, depending on the origin country and the specific agreement.

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FAQ

What are the typical import duty rates for HS code 381239?

HS code 381239, which covers 'Other preparations for vulcanizing rubber or plastics', has varying duty rates depending on the importing country and trade agreements. For instance, the U.S. Most Favored Nation (MFN) rate is 6.50% ad valorem. However, preferential rates are available under various trade agreements. For example, under the U.S. Generalized System of Preferences (GSP) and agreements with countries like Australia (AU), Canada (CA), Chile (CL), and South Korea (KR), the duty rate can be Free (0.00%). It is crucial to consult the specific tariff schedule of the destination country for precise rates applicable to your shipment.

How is the duty calculated for a shipment classified under HS 381239?

The duty calculation for HS 381239 typically involves an ad valorem rate, meaning a percentage of the declared customs value of the goods. For example, if a shipment of 'other preparations for vulcanizing rubber or plastics' has a customs value of $10,000 and the applicable duty rate is 6.50% (like the U.S. MFN rate), the import duty would be calculated as: $10,000 (customs value) × 0.0650 (duty rate) = $650. Some countries might also apply specific duties, such as a per-kilogram rate, or a combination of ad valorem and specific duties. Always verify the exact duty calculation method with the destination country's customs authority.

What are the classification criteria for HS code 381239?

HS code 381239 falls under Chapter 38 of the Harmonized System, which covers 'Miscellaneous chemical products'. Specifically, it is within heading 3812, 'Preparations for the representation of inks and other preparations for the representation of colours; prepared media for the reproduction of images on to sensitized paper or other prepared surfaces, not elsewhere specified or included; lithographic inks; ball point pen inks; inks, other than for writing, drawing, or other similar purposes; prepared unrecorded media for sound recording or for the recording of similar phenomena'. Subheading 381239 covers 'Other' preparations for vulcanizing rubber or plastics, meaning products that do not fit into the more specific subheadings within 3812 and are used to accelerate or facilitate the vulcanization process (cross-linking of polymers) of rubber or plastics. Importers must ensure their product's primary function is related to vulcanization and that it's not classifiable under more specific headings like those for accelerators or retarders if they are separately defined.

What documentation is typically required for importing goods under HS code 381239?

Standard import documentation for HS code 381239 generally includes a commercial invoice detailing the product description, quantity, unit price, and total value; a packing list specifying the contents of each package; and a bill of lading or air waybill for transportation. Depending on the importing country and the specific nature of the 'preparation', additional documents may be required. This could include a Certificate of Origin to claim preferential duty rates under trade agreements, safety data sheets (SDS) or chemical declarations to comply with chemical import regulations, and potentially import licenses or permits if the preparation contains controlled substances. It is advisable to consult the importing country's customs authority or a customs broker for a definitive list.

Which common trade agreements offer preferential duty rates for HS code 381239?

Several trade agreements provide preferential duty rates, often including duty-free entry, for goods classified under HS code 381239. For example, the United States has agreements that benefit imports from countries such as Australia (AU), Canada (CA), Chile (CL), South Korea (KR), and others listed with a 'Free' rate (often denoted by 'A' or specific country codes in tariff schedules). The European Union's TARIC system also provides preferential rates for goods originating from countries with which the EU has free trade agreements. Similarly, the UK Trade Tariff reflects preferential rates for goods from countries that are part of the UK's trade network. To claim these benefits, importers must ensure the goods meet the rules of origin stipulated in the relevant trade agreement and provide a valid Certificate of Origin.